propcmd_valbuf
free(command->propcmd_valbuf);
command->propcmd_valbuf = NULL;
command->propcmd_valbuf = valtok;
command->propcmd_valbuf = malloc(sizetok);
if (command->propcmd_valbuf == NULL)
err = validate_size_and_cvt_val(command->propcmd_valbuf,
free(command->propcmd_valbuf);
err = ptree_create_prop(&propinfo, command->propcmd_valbuf, &proph);